What is the 4 factors that affect the carrying capacity in an ecosystem?

Answers

Best Answer: Food availability, water, environmental conditions, and space.
These are the most basic factors. Some species like human have much more complex factors like health resources and sanitation just to name a few.

Wow, I can think of only two good ones. 1. Climate change. It becomes too hot or too cold or too rainy or too dry for the current population of producers. A new mix of producers starts taking over, affecting the food webs that had depended on the original mix of producers. 2. Introduction of a competing species. A competing species migrates in, or is introduced. They take resources that your species needed (e.g. food, nesting sites). Suddenly the carrying capacity of the environment for your species decreases. Here're some not-so-good ones: 3. Gross physical change. A n earby erupting volcano covers everything with volcanic ash. Suddenly the carrying capacity for the original species decreases. 4. Introduction of a new rich nutrient source. Species that are best equipped to exploit this source will crowd out those that aren't (increasing the carrying capacity for the better fit, and reducing the carrying capacity for the less fit). You can see this happening with agricultural and sewage runoff in rivers and in the oceans near the outflows.